Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c9a8af3ef33820…

MALICIOUS

PDF

34.7 KB Created: 2021-06-18 02:12:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 113fac46420a6b894861f13cd3e8d019 SHA-1: d20c165b0a0e39b10f950b69eabf9ed6f67645ed SHA-256: 30c9a8af3ef33820868a7637c8d490d4c83e9926d888cb198c438fc73a64acfd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/todos-los-hacks-de-check-casher-v3-roblox-prision-life-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-person_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/win-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-adventure-story-wraith-card-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C3 21544 bytes
SHA-256: 2fa213a5234395fd66d94db10d1780130ea5d5724b42edbf6271c0f5a0fee98f
font_01_sfnt_off00006116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6116 19560 bytes
SHA-256: 1525849314be8254bc7e1db8b25c337a0ca50daad2a57ff666b1564fc80a87d8

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